There are advantages to both and also disadvantages with both. The biggest disadvantage for both is the high cost of producing it. Coal remains by far the cheapest way to create energy. But if you cut the cost of the building and maintenance of the coal plants you will see that it cost a lot of time and money to get the entire country electrified in the first place. If the project were to be spread out over a number of years the cost would not seem quite as great.
